package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {
    /**
     * 根据信息查询是否存在数据
     * @param shoppingCart
     * @return
     */
    List<ShoppingCart> getByInfo(ShoppingCart shoppingCart);

    /**
     * 给对应的数量加一即可
     * @param cart
     */
    @Update("update shopping_cart set number=#{number} where id=#{id}")
    void updateNumberById(ShoppingCart cart);

    /**
     * 插入到数据库
     * @param shoppingCart
     */

    @Insert("insert into shopping_cart(name, image, user_id, dish_id, setmeal_id, dish_flavor,number, amount, create_time) " +
            "VALUES (#{name},#{image},#{userId},#{dishId},#{setmealId},#{dishFlavor},#{number},#{amount},#{createTime})")
    void insert(ShoppingCart shoppingCart);

    /**
     * 清空购物车
     */
    @Delete("delete from shopping_cart")
    void cleanShoppingCart();

    /**
     * 删除一个商品
     * @param shoppingCart
     */
    void delete(ShoppingCart shoppingCart);

    @Delete("delete from shopping_cart where user_id = #{UserId}")
    void deleteByUserId(Long UserId);

    /**
     * 批量插入购物车数据
     *
     * @param shoppingCartList
     */
    void insertBatch(List<ShoppingCart> shoppingCartList);
}
